Individualized fingerprint identification method

A fingerprint recognition, fingerprint technology, applied in character and pattern recognition, instruments, computer parts and other directions, can solve problems such as rejection of authenticity

Inactive Publication Date: 2009-12-16
周易
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Commonly used fingerprint recognition methods include steps such as fingerprint collection, image preprocessing, feature extraction, and detail matching. The main disadvantages of the above-mentioned fingerprint recognition methods are as follows: There may be rejections

Method used

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Experimental program
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Embodiment Construction

[0136] Embodiment (seeing Fig. 1-3): present embodiment comprises the following steps, fingerprint collection, image preprocessing, feature extraction; It is characterized in that it also comprises the following steps:

[0137] In the image preprocessing step, the binarization processing method adopts the skeleton type binarization processing method:

[0138] After the feature extraction step, it is first judged whether an intelligent update is needed, if necessary, the intelligent update step is carried out, and if not, the next step is carried out, that is, the learning matching step;

[0139] The skeleton type binary processing method is as follows (see Fig. 1):

[0140] The first step, set: f(x 0 ,y 0 ) is the gray value of the point, and its direction field is O(x 0 ,y 0 ), δ is a certain range;

[0141] H is the tangential pixel value and: H = Σ x = x ...

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Abstract

The invention relates to an individualized fingerprint identification method, which comprises the following steps of fingerprint acquisition and image preprocessing. The method is characterized by also comprising the following steps: in the image preprocessing, adopting the matrix type binaryzation processing method as the binaryzation processing method: after the characteristic extraction step, judging whether the intelligent updating is needed or not first, if so, performing the intelligent updating step, otherwise performing the next step which is the study matching step. The method has the advantages that: due to the adoption of the matrix type binaryzation processing method, the characteristic points of the fingerprint can be accurately extracted, and the speed of the image preprocessing is improved; the fingerprint which is hurt, crimpled, cracked, stained with oil and esquamate can be identified at high efficiency; and the fingerprint data can be intelligently added, repaired, improved and updated, so that the identification rate is improved.

Description

technical field [0001] The invention relates to a personalized fingerprint identification method, which belongs to the technical field of fingerprint identification. Background technique [0002] With the continuous development of science and technology, fingerprint identification technology has also been developed accordingly. Personalized fingerprint identification technology uses the characteristics of human fingerprints to identify the true identity of individuals. Commonly used fingerprint recognition methods include steps such as fingerprint collection, image preprocessing, feature extraction, and detail matching. The main disadvantages of the above-mentioned fingerprint recognition methods are as follows: There may be cases of rejection. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a personalized fingerprint identification method using learning intelligent identification technology, also known as a per...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/38G06K9/62
Inventor 周易
Owner 周易
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